Apparatus for varnishing loom-heddles



No. 33.948. PATENTED DEG.1'7, 1861.

* -J. L. LAIRDIESON.

APPARATUS FOR VARNISHING LOOM HEDDLES.

SHEETS-SHEBT 1.

PATENTED DEC. 17, 1861.

J. L. LAIRDIESON. APPARATUS FOR VARNISHING LOOM HEDDLES 4 SHEETS-SHEET 3.

Wifhegse s w: roams mavens co WQ'KQLITHO.WASHINGYON u c No. 83,948. Y PATENTED DEC. 17, 1861.

' J. L. LAIRDIESQN. APPARATUS FOR VARNISHING LOOM HEDDLES.

4 SHEET8-SHEET 4.

Vague/$6? fnae hfor W I I UNITED STATES PATENT OFFICE.

JOHN L. LAIRDIESON, OF TROY, NEW YORK.

APPARATUS FOR VARNISHING LOOM-I-IEDDLES.

Specification of Letters Patent No. 33,948, dated December 17, 1861.

1 '0 all whom it may concern:

Be it known that I, JOHN L. LAIRDIESON, of Troy, in the county of Rensselaer and State of New York, have invented a new and Improved Machine for Varnishing Loon1-H-eclclles; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1, is a side view of the machine. Fig. 2, is a longitudinal vertical section of the same. Fig. 4:, is a plan of the same.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to the employment of rollers for applying the varnish and rolling it into the heddles; also in the use in combination with such rollers of a system of reciprocating brushes for brushing off the superfluous varnish from and laying down the fibers of the threads of which the heddles are composed; also to certain means of holding the frames containing the heddles during the brushing operation; and further to a certain arrangement of the several parts of the machine with respect to each other for convenient operation.

To enable others skilled in the art to make and use my invention I will proceed to describe its construct-ion and operation.

A, A, is the framing of the machine having parallel sides to the interiors of which are secured two horizontal series of rollers a, a, which constitute ways for the support of traveling frames B, in which the heddles are kept strained during the varnishing process. Several of these frames B, must be provided for each machine, and each of said frames may be capable of containing two or more leaves of heddles b, b, which are strained therein by having their rails C, C, attached together by hooks 0, c, and having the outer rails of the series attached to the ends of the frame B, by hooks (Z, d, which are screwed up at one end of the frame, to tighten the heddles, by screws and nuts 6, e, as represented in Figs. 2, and 4.

D, is the varnish trough placed across the machine at about the middle of the length thereof, warmed by a steam-pipe f, and containing a horizontal roll E, of wood or other material. which dips into the varnish and the upper part of whose periphery is on a level with or slightly below the tops of the rollers a, a. The shaft of this roll E is furnished at one end with a pinion g, gearing with a stud gear h, which is attached to the side of the machine and furnished with a crank handle 76, by which to turn it for the purpose of producing the rotation of the roller within the varnish. Over the roll E, there is fitted to the upright portion A, of the framing a vertically sliding gate F, containing a roll E, which is parallel with E, and this gate is suspended by springs Z, Z, from the top of the framing and connected by a link m, with a lever G, working on a fixed fulcrum z. The length of the faces of the rolls E, E, should be less than the width between the side pieces of the frames B, in order to prevent the frames from interfering with the application of the varnish.

The varnish is applied to the several leaves of heddles contained in a frame B, by placing the said frame on the rolls a, a, moving it forward to bring each leaf in turn between the rolls E, E, and, while each leaf is between the rolls, bringing down the roll E, by power applied by hand to the lever G, and then moving the frame B, back and forth repeatedly. This last mentioned movement of the frame B, causes the heddles to impart to the two rolls, by friction, an oscillating or reciprocating rotary motion, and while the roll E, is thus caused to take up the warm varnish from the trough and apply it to the heddles, the two rolls by their combined operation roll it into them and so work it more thoroughly into and among the fibers than can be done by the use of brushes alone.

The frame B, may be moved to present the several leaves of heddles successively to the rolls E, E, and also to the brushes as will be presently described, either by pushing it along by hand or by suitable mechanlsm.

After every application of the varnish by the rolls the upper roll E requires to be raised high enough for the heddle rails to pass under it, before the frame B, can be moved. This is effected by the springs Z, Z, when the pressure is taken from the lever G. The roll E, has suitably arranged in relation to it a fixed scraper 10, to take off the superfluous varnish.

H, H, are the two brushes for taking off the superfluous varnish from and finishing the heddles, one applied to operate on the under and the other upon the upper sides thereof, and each long enough to reach all across the leaves of heddles. The lower brush H, is secured to two long bars I, I, arranged at opposite sides of the machine outside of the framing. These bars are each attached at one end to one of two cranks J, J, which are fast upon opposite ends of a horizontal shaft K, working in fixed bearings near one end of the framing, and each of said bars is received near its opposite end between two guide rollers n, n,working on pivots 0, 0, secured to the framing of the machine. The upper brush H, is attached to two bars I, I, each of which is attached at one end to one of two cranks J, J, of similar length to J, J, faston opposite ends of a horizontal shaft K, which is arranged in fixed bearings directly over the shaft K, and geared with the lat ter shaft by a pair of spurgears L, L, so that when one of the shafts has rotary motion imparted to it, the other derives from it rotary motion in an opposite direction. Each of the bars I, I, is also received between 'uide rollers '17, 1?. similar to andv arranged above the guide rollers n, n. The gear L, is geared with a stud gear M, to

which is to be attached a hand crank or other contrivance for producing rotary motion for the purpose of giving rotary motion to the shafts K, K. The two cranks of each shaft are set in the same direction and the two J, J, are so set relatively to J, J, that all are in vertical positions above their shafts at the same time and in vertical positions below their shafts at the same time, and hence when J, J, are at the end of their throw in one direction J, J, are at the end of their throw in the opposite direction. The revolution of the cranks gives the bars I, I, and I, I, a longitudinal as well as an oscillating movement and hence the brushes H, H, are moved back and forth, as well as to a slight extent upward and downward, their movement back and forth being always in opposite directions, that is to say one moving in the one and the other in the reverse direction. The rising and falling motion of the brushes is such that both brushes will only operate upon the heddles in moving over them in 7 one direction and pass clear of them in moving over them in the opposite direction and hence all the fibers are brushed one way which enables them to be made much smoother than if the brushing were done both ways.

The several leaves of heddles in a frame B, after having the varnish applied and rolled into them as hereinbefore described, are by a proper movement of the said frame brought between the brushes, and before the brushes are set in operation upon the heddles the frame B and heddles are secured and firmly held by means of two eccentric clamps N, N, pressing the frame down upon two fixed blocks 10, attached to the sides of the framing and by means of a hooked lever P, which catches one of the connecting hooks c, 0, which connect the heddle rails. The eccentric clamps N, N, are fast upon ahorizontal shaft Q, which is arranged to turn or oscillate in fixed bearings near the end of the framing at which the rollers n, n, and n, n, are situated, and they are brought into and out of operation by a hand lever It, attached to the said shaft.

The hooked lever P, (best shown in Fig. 3) works on a fixed fulcrum o, and is operated to hook overthe connecting hook c, as the clamps N, N, come into operation and unhook it as the said clamps are thrown out of operation, by its being connected by means of a rod 9, an elbow lever 1', and a rod 8, with an arm 7%, that is fast on the shaft Q, the said lever 1', being arranged to work horizontally upon a fixed fulcrum u. The object of the hook P, is to confine the heddles vertically and so prevent them from being pressed upward and downward by the operation of the brushes.

To prevent the brush H, from accidentally coming in contact with the heddles during the operation of applying and rolling in the varnish, it is attached to bars I, I, by means of pivots 5, 5, which enable it to be turned over to the position shown in dotted outline in Fig. 2, in which position it cannot touch the heddles. When it is thrown down to its operative position it is so secured by means of two buttons 6, 6. The lower brush H, is prevented from interfering with the rolling operation by its being caused to drop down out of contact with the heddles by the weight -of the several cranks and the bars I, I, I, I, all of which drop to their lowest positions when left free.

In order to prevent the varnish which collects upon the upper roll E, from dropping therefrom on the heddles during the brushing process I apply a band to, from the shaft K, or from a pulley thereon to a pulley 00, attached to the gate F, and another band y, from the latter pulley to the roll E, by which means whenever the brushes are set in operation a rotary motion is given to the said. roller and the varnish kept flowing around it. The band w, is prevented from interfering with the action of the roll E,

in rolling the varnish into the heddles as its position in the gate F, is such that when the gate is lowered to bring the roll on the heddles the said band becomes slack.

What I claim as my invention and desire to secure by Letters Patent, is:

1. The employment for applying the varnish in the varnishing of heddles, of a pair of rolls operating on opposite sides of the heddles to roll the varnish into the threads substantially as herein specified.

ner that the said roller may have a rotary motion imparted to it when the brushes are 15 in operation substantially as herein described.

55. The arrangement of the varnish rollers the reciprocating brushes and their operating mechanism and the rollers a, w, or 20 equivalent horizontal supports for the heddle frames substantially as herein specified.

J. L. LAIRDIESON. Witnesses:

JAMEs LAIRD, R. GAWLEY. 

